-
-
Save apreshill/a4b2d1084c5c4e2feba2 to your computer and use it in GitHub Desktop.
Install and load multiple R packages at once
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| # ipak function: install and load multiple R packages. | |
| # check to see if packages are installed. Install them if they are not, then load them into the R session. | |
| ipak <- function(pkg){ | |
| new.pkg <- pkg[!(pkg %in% installed.packages()[, "Package"])] | |
| if (length(new.pkg)) | |
| install.packages(new.pkg, dependencies = TRUE) | |
| sapply(pkg, require, character.only = TRUE) | |
| } | |
| # usage | |
| packages <- c("ggplot2", "plyr", "reshape2", "RColorBrewer", "scales", "grid") | |
| ipak(packages) |
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment
Nice! I was thinking I should just write a function to do this but couldn't think of a good name. I actually went to a thesaurus and searched for synonyms to "install"...